To "release" brakes on a 2004 Malibu, you need to specify which brakes you're working on:
* Front Disc Brakes (most likely): You don't "release" the calipers in the sense of manually detaching them. The calipers are self-adjusting. If the brakes are dragging, the issue is likely:
* Stuck caliper piston: This requires using a C-clamp or specialized brake caliper piston compression tool to carefully push the piston back into the caliper. You'll need to open the bleeder valve to allow fluid to escape as you compress the piston. This is a job that requires some mechanical skill and the right tools.
* Low brake fluid: Check the brake fluid level in the master cylinder reservoir. If it's low, you need to figure out why and refill it. Low fluid can contribute to brake drag.
* Worn brake pads: Worn pads can sometimes cause slight dragging. Replace them if they are worn.
* Damaged caliper: A damaged or seized caliper may need to be replaced.
* Rear Drum Brakes: These are a different system. If the rear brakes are dragging, it's likely due to:
* Adjuster issues: The automatic adjusters in the wheel cylinders may be seized or out of adjustment. This often requires manual adjustment, which is best done with the wheel removed and using a specialized tool or by carefully turning the adjuster using a screwdriver.
* Worn brake shoes: Similar to front pads, worn shoes can contribute to dragging. They should be replaced.
* Seized wheel cylinders: Wheel cylinders can seize, requiring replacement.
Important Safety Notes:
* Brake work is dangerous. If you're not comfortable working on brakes, take your car to a qualified mechanic. Incorrectly working on brakes can lead to serious injury or death.
* Always use safety glasses and gloves.
* Never work on brakes without properly supporting the vehicle. Use jack stands, not just a jack.
* If you're working on the disc brakes, properly depress the brake pedal several times to re-establish the master cylinder's pressure after bleeding.
* After any brake work, have the system professionally bled to ensure proper functionality and to remove any air bubbles in the brake lines.
To get more specific instructions, you need to tell me whether you're working on the front or rear brakes, and what the specific problem is (e.g., brakes dragging, brakes feel spongy, etc.). A picture might even help. But again, if you're not experienced with brake repair, please seek professional help.
